6547896449 has 2 divisors, whose sum is σ = 6547896450. Its totient is φ = 6547896448.

The previous prime is 6547896373. The next prime is 6547896521. The reversal of 6547896449 is 9446987456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5597284225 + 950612224 = 74815^2 + 30832^2 .

It is a cyclic number.

It is not a de Polignac number, because 6547896449 - 2²⁰ = 6546847873 is a prime.

It is a super-3 number, since 3×6547896449³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6547896391 and 6547896400.

It is not a weakly prime, because it can be changed into another prime (6547895449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3273948224 + 3273948225.

It is an arithmetic number, because the mean of its divisors is an integer number (3273948225).

Almost surely, 2^6547896449 is an apocalyptic number.

It is an amenable number.

6547896449 is a deficient number, since it is larger than the sum of its proper divisors (1).

6547896449 is an equidigital number, since it uses as much as digits as its factorization.

6547896449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 62.

The square root of 6547896449 is about 80919.0734561389. The cubic root of 6547896449 is about 1870.8283145436.

The spelling of 6547896449 in words is "six billion, five hundred forty-seven million, eight hundred ninety-six thousand, four hundred forty-nine".